Launch
Pick the model from the Nudj library, set the target level, dates and participants.
Self-assess where your jurisdiction stands on the Ten Global Principles for Fighting Tax Crime, and track progress as capability grows.

The Tax Crime Investigation Maturity Model helps a jurisdiction see where it stands in implementing the OECD's Ten Global Principles for Fighting Tax Crime, and plan its path to stronger enforcement.
It is also a way to measure progress over time and the impact of capacity-building support. Unlike the tax administration series, it uses four maturity levels, and because the principles depend on each other, weakness in one affects the whole regime.
Each element is rated at the level that best describes the administration today. Not every statement under a level has to be met; the aim is the best overall fit, backed by evidence.
The model describes a direction of travel, not a pass mark. There is no single right level for every administration: you choose the target that fits your context, and Nudj measures the gap to it.
Some capability to combat tax crime exists, but processes are ad hoc and need significant improvement.
Reforms have started, but processes are not yet systematic or institutionalised.
Robust, institutionalised processes give a high degree of capability. Many advanced jurisdictions sit here.
Optimised processes and innovative tools and technology; few jurisdictions are consistently at this level.
Pick the model from the Nudj library, set the target level, dates and participants.
Run the facilitated discussion. Each participant chooses the best-fit level for every attribute.
Record the reasons for each rating and attach supporting documents.
An assessor reviews, challenges and validates the ratings before they count.
See the result by attribute and theme, and the gap to your target level.
Turn the gaps into recommendations, a roadmap and owned tasks.
Run the model again later and compare cycles to show progress.
Nudj's assessment follows the structure of the OECD Tax Crime Investigation Maturity Model as published by the OECD: the same attributes and the same 4 maturity levels. Nudj is not affiliated with the OECD; we recommend that participants also have the OECD publication to hand.
Yes. The model is designed as a facilitated self-assessment. Nudj supports a single facilitated session or several respondents rating separately, with an assessor validating the results.
Designed as a multi-day workshop, with groups each taking one principle.
Yes. Each run is a separate assessment event, and Nudj compares cycles side by side so you can show progress against your target.
Nudj's interface works in English and Arabic, including right-to-left layout. The OECD model content itself is in English.
Yes. You can extend a built-in model with your own questions, and use Nudj's framework builder for your organisation's own models alongside the OECD ones.
The Tax Crime Investigation Maturity Model defines Emerging, Progressing, Established and Aspirational, with no Leading level. Nudj scores it on its own four-level scale so results are never measured against a level the model does not define.
OECD is a registered trademark of the Organisation for Economic Co-operation and Development. Genuine Soft and Nudj are not affiliated with or endorsed by the OECD. The maturity models are published by the OECD; Nudj provides the platform for running assessments based on them.
See the full assessment, from the first rating to the improvement roadmap.